Guanidine fuels rapid resurrection of desert cyanobacteria - Jin-Long Shang; Guo-Wei Qiu; Lei Zhao; Hai-Feng Xu; Yao Cheng; Yong Li; Zhong-Chun Zhang; Guo-Zheng Dai; Shengwei Hou; Chen Yang; Wolfgang R. Hess; Bao-Sheng Qiu (Proceedings of the National Academy of Sciences, 2026)